iPhone 4S owners surge app downloads

The Index measures the average aggregate daily download volume of the top 200 free US iPhone apps. An upward trajectory initiated during October when the iPhone 4S launched. The Index peaked at 5.65 million downloads per day in November; a 14 percent increase over October’s previous record high of 4.91 million daily downloads. By comparison, app download volumes in November 2010 were 83 percent lower, illustrating the enormous demand for and growth of mobile apps in just twelve months.